SCROLL COMPRESSOR

摘要

The present invention relates to a scroll compressor (100). The scroll compressor comprises a shell (10); a fixed scroll component (80) and a moving scroll component (70) arranged in the shell, wherein the fixed scroll component is fixed relative to the shell, and the moving scroll component can float in the axial direction relative to the fixed scroll component; a main bearing base (40) is arranged in the shell to support the moving scroll component, a back pressure cavity (B) is formed between the moving scroll component and the main bearing base and communicated with fluid of a compression cavity (C2) through a communication channel (73), the communication channel (73) is formed in the moving scroll component, and the compression cavity (C2) is formed between the fixed scroll component and the moving scroll component; and valve components (90, 90A) arranged in the communication channel (73) are formed to respond the pressure difference between the compression cavity and the back pressure cavity so as to provide a first aperture and a second aperture, and the second aperture is smaller than the first aperture.

主权项

1. A scroll compressor, comprising:
a shell; a fixed scroll component and a moving scroll component provided in the shell, wherein the fixed scroll component is arranged to be fixed relative to the shell, and the moving scroll component is arranged to be floatable in an axial direction relative to the fixed scroll component; a main bearing housing provided in the shell to support the moving scroll component, wherein a back pressure cavity is formed between the moving scroll component and the main bearing housing, and the back pressure cavity is in fluid communication with a compression pocket formed between the fixed scroll component and the moving scroll component via a communication passage formed in the moving scroll component; wherein the scroll compressor further comprises a valve component provided in the communication passage, the valve component is configured to provide a first opening and a second opening in response to the pressure difference between the compression pocket and the back pressure cavity, and the second opening is smaller than the first opening.